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Time intervals measured with stopwatch typically have anuncertainty of about 0.2s, due to human reaction time at the startand stop moments. What is the percent of a hand timed measurement of a. 5.0s b.50s c 5min?
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A clock is set against an accurate standard and 30 days later is found to be in error by 12 seconds. What is the percentage of error in its time keeping?
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